5-40. Cylinder Head Assembly

TM-5-4310-386-14 Compressor Reciprocating Air: Electric Motor Driven & CFM 175 PSI C & H Model 20-918 Manual
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TM 5-4310-386-14 5-40. Cylinder Head Assembly . This task covers: a. Adjust b. Replace c. Repair INITIAL SETUP Tools Materials/Parts General Mechanic's Tool Kit Brush (Item 6, Appendix E) (NSN 5180-00-177-7033) Fuel Diesel (Item 10, Appendix E) Torquing Device (PN 0030500) Grease (Item 12, Appendix E) Socket Wrench (PN 0030512) Cylinder Head Square-recess Socket (PN 0030511 ) Cylinder Head Gasket Outside Micrometer (PN 5120-00-554-7134) Cutting Device (PN 0030426) Equipment Condition Turning Fixture (PN 0030621) Drift (PN 0030764) Compressor unit shut down (para. 2-13). Mandrel for Turning Off Fuel injectors removed (para. 5-31). Valve Seat Rings On: Rocker arms and push rods removed (para. 5-38). Mandrel (PN 0031234) Valves removed (para. 5-41). Drilling Device (PN 0030694) Cooling air ducting removed (para. 4-42). Pilot Pin with Drilling Bushes (PN 0030650) Silencer and muffler removed (para. 4-39). Special Milling Cutter, Hard Metal (PN 0030652) Intake manifold removed (para. 4-38). Assembly Arbor: Inlet (PN 0030620) Reference Exhaust (PN 0030441) Cutter for Valve Seat Ring, Inlet/Exhaust Refer to Appendix F for torque values. (PN 0030784) Assembly Arbor (PN 0030453) Reamer (PN 0030452) Puller (PN 0030434) Holder (P/N 0030784) a. Adjust. (figure 5-58) NOTE Anytime the cylinder head is removed, the piston crown clearance must be checked and if required adjusted. The following procedure describes checking and adjusting the piston crown clearance. (1) Turn crankcase until piston is just below TDC. (2) Apply grease to a piece of lead wire 2 mm thickness and stick wire to piston crown. (3) Mount cylinder head (1) on cylinder and install washers (2) and head bolts (3). 5-164

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